DV Site Reliability Engineer (Contract outside of IR35)

About Us In 2019, the founders were working as engineers solving complex cross-domain problems within government organisations. TwinStream was formed to bring together their collective expertise and experience into a single business, focused on delivering technical excellence and high-quality service to clients. Since then, the company has grown to over 100 team members across the UK, with colleagues working both on-site with clients, hybrid and remotely from home. Day Rate: £500 - £650 Location: Hybrid working in Cheltenham (3-4 days) with possible 24/7 call out when on rota Security Clearance: Must have live DV Clearance About the role: Our cross-domain services are used in high-profile government organisations. The demand for these services continues to grow in both scope and scale. We are seeking an experienced Site Reliability Engineer to help satisfy that demand. As an SRE you will be responsible for ensuring the availability, performance and cost effectiveness of these services. You will be working with multiple feature development teams and the BAU/Support team to define and evolve our cloud & on-prem infrastructure & delivery pipelines, improving system observability, demonstrating performance and capacity improvements and proactively identifying and mitigating reliability risks. Key Responsibilities of the Site Reliability Engineer: Designing and maintaining reliable, scalab le physical and virtual in frastructure Monitoring system performance and proactively resolving issues Automating processes using tools such as Ansible to improve efficiency and consistency Collaborating with engineers and stakeholders across the business Supporting continuous improvement of systems, tools, and practices Operating across the full infrastructure stack, from bare metal systems through to virtualised deployments and the applications running within them. Skills & Experience Required: Experience using modern configuration management tools (such as Ansible, Chef or similar) Experience working with Terraform Experience working with docker containers & container orchestration tools (such as Kubernetes, OpenShift or Docker Swarm) Experience both using and maintaining CI / CD tools (such as Jenkins or similar) Experience with monitoring tools such as InfluxDB, Prometheus or Grafana. Experience of event-driven integration with MQ messaging (RabbitMQ or similar AMQP solution) Good understanding of relational databases and SQL Linux command line, administration and shell scripting Working knowledge of network security protocols Experience using, developing with and maintaining cloud hosting services (ideally AWS EC2, RDS, S3, Lambda) Desirable Skills: Industry experience writing well-tested code in one of our platform languages (Java, Go, Python or similar) Knowledge of cross domain principles & technologies Experience of working in a service management environment Practical applications of using observability patterns in previous systems Creating and monitoring system availability metrics and using those to drive work that reduces downtime Experience in Azure Diversity & Inclusion We’re committed to building a diverse and inclusive workplace. We welcome applications from people of all backgrounds, experiences, and identities. If you need any adjustments during the recruitment process, please let us know. We’re here to support you Further Information: Due to the nature of the work and the sectors we support, any offer of employment will be subject to the successful completion of the relevant security screening and clearance process. This role requires eligibility for [BPSS / SC / DV] clearance. As part of the vetting process, candidates must meet the UK Government's residency and right-to-work requirements associated with the required level of clearance.